add myself to authors and bump version

AUTHORS.rst

 Sean Bleier <http://github.com/sebleier>
 Matt Dennewitz <http://github.com/blackbrrr>
 Jannis Leidel <http://github.com/jezdez>
+S. Angel / Twidi <http://github.com/twidi>
 
 Forked from http://github.com/sebleier/django-redis-cache

README.rst

@@ -2,7 +2,7 @@
 Redis Django Cache Backend
 ==========================
 
-A simple Redis cache backend for Django.
+A simple Redis cache backend for Django >= 1.3
 
 Notes
 -----

setup.py

@@ -5,7 +5,7 @@ setup(
     url = "http://github.com/blackbrrr/django-redis-cache/",
     author = "Matt Dennewitz",
     author_email = "mattdennewitz@gmail.com",
-    version = "0.2a8",
+    version = "0.2a9",
     packages = ["redis_cache"],
     description = "Redis Cache Backend for Django",
     classifiers = [